Vulnerability Description
A vulnerability was determined in xlnt-community xlnt up to 1.6.1. Impacted is the function xlnt::detail::compound_document::read_directory of the file source/detail/cryptography/compound_document.cpp of the component Encrypted XLSX File Parser. Executing a manipulation can lead to out-of-bounds read. The attack is restricted to local execution. The exploit has been publicly disclosed and may be utilized. This patch is called 147. Applying a patch is advised to resolve this issue.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Xlnt-Community | Xlnt | <= 1.6.1 |
Related Weaknesses (CWE)
References
- https://github.com/oneafter/0128/blob/main/xl5/reproExploit
- https://github.com/xlnt-community/xlnt/Product
- https://github.com/xlnt-community/xlnt/issues/141ExploitIssue TrackingVendor Advisory
- https://github.com/xlnt-community/xlnt/pull/147Issue Tracking
- https://vuldb.com/?ctiid.349553Permissions RequiredVDB Entry
- https://vuldb.com/?id.349553Third Party AdvisoryVDB Entry
- https://vuldb.com/?submit.764646Third Party AdvisoryVDB Entry
FAQ
What is CVE-2026-3664?
CVE-2026-3664 is a vulnerability with a CVSS score of 3.3 (LOW). A vulnerability was determined in xlnt-community xlnt up to 1.6.1. Impacted is the function xlnt::detail::compound_document::read_directory of the file source/detail/cryptography/compound_document.cpp...
How severe is CVE-2026-3664?
CVE-2026-3664 has been rated LOW with a CVSS base score of 3.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-3664?
Check the references section above for vendor advisories and patch information. Affected products include: Xlnt-Community Xlnt.